how can i find which process result in that linux shut down slowly

There are several possible reasons why your Linux system may be shutting down slowly. To identify the specific process causing the issue, you can follow these steps:

Check the system logs: The system logs provide valuable information about various events and processes running on your Linux system. Use the following command to view the system logs:
```
sudo journalctl -b
```
This will display the logs from the current boot. Look for any errors or warnings related to shutdown or slow processes.
Monitor system resources: A resource-intensive process can slow down the shutdown process. Use the following command to monitor system resources:
```
top
```
This will display a list of processes along with their resource usage. Look for any processes consuming excessive CPU or memory resources.
Use systemd-analyze: The systemd-analyze command provides detailed information about the system's boot-up and shutdown process. Run the following command to analyze the shutdown process:
```
systemd-analyze blame
```
This will display a list of processes and the time each process takes during the shutdown. Look for any processes with unusually long durations.
Disable unnecessary services: Some services or processes might not be needed and can be safely disabled. Use the following command to list all active services:
```
systemctl list-units --type=service --state=active
```
Identify any services that are not required and disable them using:
```
sudo systemctl disable <service-name>
```
Update software and drivers: Ensure that your Linux distribution, software, and drivers are up to date. Outdated software or drivers can cause stability issues and slow down the shutdown process.
Check for hardware issues: In some cases, hardware problems can affect the shutdown process. Run hardware diagnostics tools to check for any potential issues with your system components.

By following these steps, you should be able to identify the specific process causing the slow shutdown on your Linux system

how can i find which process result in that linux shut down slowly